| 摘要 |
The invention relates to a heating oven with a multifuel combustion space which is formed by a combustion chamber with a grate. Below the grate, there is arranged a combustion-air supply device and above the grate a secondary-air supply device. To achieve the aim of increasing the degree of combustion efficiency, it is proposed according to the invention that the secondary-air supply device consists of a pipe which passes through the combustion space and is, above the grate, provided with at least one air outlet opening. <IMAGE>
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